On Wednesday 02 March 2005 14:27, Nuutti Kotivuori wrote: > We have again encountered a nasty and weird problem with UML. > > If swap is enabled for a virtual machine, and the virtual machine > actually swaps something, swapoff at shutdown hangs the machine. Now, > I could understand this, if it was because the running processes would > not fit in main memory without swap, but this happens even though all > other processes have been killed - just init and the script running > swapoff remains. There's plenty of free memory, but some 500kB of swap > in use. The swap is a disk file, entirely non-sparse. We are running > 2.6.9-bs5. There were some crashes fixed after, upgrade to -bs7. I don't think this is fixed, but just in case... You may also want to try 2.6.11 as host kernel. > We also had a similar problem earlier (exact same symptoms) - but we > came to the conclusion then that if devfsd was running, swapoff > hung. Problem was solved by removing devfsd entirely (we thought it > might have to do with the locking of pages that devfs does), but now > it resurfaced again, and there doesn't seem to be any process left to > blame this time. > > Yet again, we are investigating this further - if anyone has any > ideas, please give a holler. Hmmm, make sure with some "echo" and commenting / uncommenting in the init scripts that it is actually the cause (if you haven't done it already). Not a lot, I know, sorry. > -- Naked
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